Chapter 2 27
Test Descriptions
Input VSWR
8. Measuring VSWR from 6700 MHz to 26500 MHz
Calibrating the Vector Network Analyzer 1 from 10 MHz to
1.5GHz or 3GHz
Step 1. Press the
Preset key on the Network Analyzer.
Step 2. Set the Active Channel to 1 (press
Chan 1).
Step 3. Set the measurement mode to S11 (press the
Meas key and Reflection).
Step 4. Set the start and stop frequencies.
The start and stop frequencies depend on the frequency range of the
NFA:
For the N8972A model (frequency range 10 MHz to 1.5 GHz): press
Start,
1, 0, M/µ then Stop, 1, ., 5, G/n
For the N8973/4/5A models (frequency range 10 MHz to 3.0 GHz): press
Start, 1, 0, M/µ then Stop, 3, ., 0, G/n
Step 5. Set the measurement format to SWR (press the Format key and SWR).
Step 6. Set the number of measurement points to 401 points (press the
Sweep
Setup
key, and NUMBER of POINTS, 4, 0, 1, x1
Step 7. Set the power level to -30dBm (press the Sweep Setup key and Power, -, 3,
0, x1
Step 8. Connect the test equipment as shown in Figure 2-3.
NOTE During this test procedure, ET model network analyzers do not require
adaptor 1, while NFA N8972A and N8973A do not require adaptor 2.
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